[commons-statistics] 02/06: Simplify density using logDensity

[aherbert]

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aherbert pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/commons-statistics.git

commit 8f79a54704ed1bc1d5555736e7894d5f4cafa16f
Author: Alex Herbert <aherb...@apache.org>
AuthorDate: Fri Jul 30 21:27:06 2021 +0100

    Simplify density using logDensity
---
 .../org/apache/commons/statistics/distribution/BetaDistribution.java   | 3 +--
 .../commons/statistics/distribution/ExponentialDistribution.java       | 3 +--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git 
a/commons-statistics-distribution/src/main/java/org/apache/commons/statistics/distribution/BetaDistribution.java
 
b/commons-statistics-distribution/src/main/java/org/apache/commons/statistics/distribution/BetaDistribution.java
index 0d7653f..e9bc71b 100644
--- 
a/commons-statistics-distribution/src/main/java/org/apache/commons/statistics/distribution/BetaDistribution.java
+++ 
b/commons-statistics-distribution/src/main/java/org/apache/commons/statistics/distribution/BetaDistribution.java
@@ -66,8 +66,7 @@ public class BetaDistribution extends 
AbstractContinuousDistribution {
     /** {@inheritDoc} */
     @Override
     public double density(double x) {
-        final double logDensity = logDensity(x);
-        return logDensity == Double.NEGATIVE_INFINITY ? 0 : 
Math.exp(logDensity);
+        return Math.exp(logDensity(x));
     }
 
     /** {@inheritDoc} **/
diff --git 
a/commons-statistics-distribution/src/main/java/org/apache/commons/statistics/distribution/ExponentialDistribution.java
 
b/commons-statistics-distribution/src/main/java/org/apache/commons/statistics/distribution/ExponentialDistribution.java
index 7898aaf..fd1fbcc 100644
--- 
a/commons-statistics-distribution/src/main/java/org/apache/commons/statistics/distribution/ExponentialDistribution.java
+++ 
b/commons-statistics-distribution/src/main/java/org/apache/commons/statistics/distribution/ExponentialDistribution.java
@@ -49,8 +49,7 @@ public class ExponentialDistribution extends 
AbstractContinuousDistribution {
     /** {@inheritDoc} */
     @Override
     public double density(double x) {
-        final double logDensity = logDensity(x);
-        return logDensity == Double.NEGATIVE_INFINITY ? 0 : 
Math.exp(logDensity);
+        return Math.exp(logDensity(x));
     }
 
     /** {@inheritDoc} **/